Molybdenum High Temperature Alloy TZM Rod

製品の説明

Overview

Molybdenum High Temperature Alloy TZM Rod is a titanium-zirconium-molybdenum (Ti-Zr-Mo) ternary alloy bar. Through solid solution strengthening and dispersion strengthening mechanisms, it is significantly better than pure molybdenum in strength, creep resistance and recrystallization temperature. It is suitable for use as high-temperature structural parts, such as nuclear fuel cladding, hot runner nozzles, heating elements or welding electrodes.

TZM Alloy Advantages

• High melting point and thermal stability: With a melting point of approximately 2610°C, it maintains structural integrity at elevated temperatures without softening or deformation.
• Superior high-temperature strength: Exhibits high yield strength and tensile strength, typically surpassing pure molybdenum or tungsten, with outstanding creep resistance at high temperatures.
• Higher recrystallization temperature: Exceeds that of pure molybdenum (by about 1400°C), extending service life at elevated temperatures.
• Strong corrosion resistance: Exhibits excellent resistance to corrosive media such as acids, alkalis, and molten glass, making it suitable for chemical and metallurgical environments.
• High thermal conductivity and low thermal expansion coefficient: Features high thermal conductivity and a low expansion coefficient, facilitating heat transfer and minimizing thermal stress.
• Good workability and room-temperature properties: Possesses good plasticity and weldability at room temperature, along with a high elastic modulus, enabling easy processing into shapes such as rods.

Specification

Molybdenum High Temperature Alloy TZM Rod Application

Processing

① Raw material preparation: Use molybdenum powder, titanium powder, and zirconium powder with a purity of ≥99.95%, and mix them evenly in proportion (usually Ti: 0.5%, Zr: 0.1%, and the balance Mo).

②Powder metallurgy billet making: The mixed powder is formed by cold isostatic pressing, and then sintered in a hydrogen atmosphere to obtain a dense sintered billet.

③Plastic processing: The sintered billet is opened by multiple passes of high-temperature forging, and then hot-rolled or warm-rolled to gradually reduce the diameter to the target rough specification of the bar.

④ Precision processing: The thick rod is solid solution treated to improve toughness, and then cold rolled or cold drawn for finishing, to finally obtain high-precision dimensions.

⑤Finished product processing: Finally, it undergoes straightening, cutting, surface grinding, and ultrasonic flaw detection to ensure that there are no internal defects.

Molybdenum High Temperature Alloy TZM Rod Pictures

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